How severe is CVE-2021-22175?

CVE-2021-22175 has a CVSS 3.1 base score of 6.8 (MEDIUM). EPSS estimates a 53.4% probability of exploitation in the next 30 days. It is listed in the CISA Known Exploited Vulnerabilities catalog.

CVE-2021-22175: GitLab Server-Side Request Forgery (SSRF)

CISA Known Exploited Vulnerabilities

GitLab Server-Side Request Forgery (SSRF) Vulnerability is confirmed as actively exploited and is listed in the CISA KEV catalog.

Added to KEV

2026-02-18

Remediation due

2026-03-11

Required action
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

CISA notes
https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-22175.json ; https://nvd.nist.gov/vuln/detail/CVE-2021-22175

Description

When requests to the internal network for webhooks are enabled, a server-side request forgery vulnerability in GitLab affecting all versions starting from 10.5 was possible to exploit for an unauthenticated attacker even on a GitLab instance where registration is disabled

Severity

CVSS 3.1 · CNA6.8 MEDIUM

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N

SSVC · CISA-ADP

Exploitationactive

Automatableno

Technical impacttotal

Affected Products

Vendor	Product	Affected versions
GitLab	GitLab	>=10.5, <13.6.7 >=13.7, <13.7.7 >=13.8, <13.8.4

References

3 Links

Other references

Record Details

Published

2021-06-11

Last updated

2026-10-01

Assigner (CNA)

GitLab

Credited to

Thanks [@myster](https://hackerone.com/myster?type=user) for reporting this vulnerability through our HackerOne bug bounty program

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CVE record data © The MITRE Corporation, used under the CVE Terms of Use. Exploited-in-the-wild data from the CISA Known Exploited Vulnerabilities catalog (CC0). Exploit prediction scores by FIRST EPSS (first.org/epss). This site is not endorsed or certified by MITRE, NVD, CISA, or FIRST.